Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letters/number pair pair from the given alternatives.

The value of 2.31 x 0.34 = ?

If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)

A man spends 15% of his income. If his expenditure is Rs. 75, his income (in rupees) is:

Two successive discounts of 12% and 20% are given by Rajat on a shirt. If the marked price of the shirt is Rs 500, then what is the value (in Rs) of discount?

If x - y = -8 and xy = 45, then (x2 + y2) is

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 9 cm, 6 cm and 5.4 cm respectively find length of BC?

If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?